A 0.50-in2 steel bar will be used to hang a load. In tension, the steel has a minimum yield strength of 36 000 lb/in2 and an ultimate strength of 58 000 lb/in2.
(a) Determine the maximum permissible load that the bar can carry using the allowable strength design method. Use a factor of safety of 1.5 against yield strength.
(b) Determine the maximum permissible load that the bar can carry using the strength design method. Use a strength reduction factor of 0.85 against yield strength.
(c) Determine the maximum permissible load that the bar can carry using the strength design method. Use a strength reduction factor of 0.6 against ultimate strength.
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